Principles of congestion control

1. What is the principle of congestion control in TCP?
2. What are the different techniques of congestion control?
3. What are two types of congestion control?
4. What are the three parts of congestion control?
5. What are the types of congestion?
6. Why is congestion control important?
7. Which 2 layers are responsible for congestion control in networks?
8. What are the 6 types of congestion?
9. What is an example of congestion?
10. What causes congestion?
11. What are flow control techniques?
12. What two factors does congestion control involve?
13. How congestion is controlled at transport layer?
14. What is difference between congestion control and flow control?
15. What are the 3 elements of service quality?
16. What are the 3 levels of service quality?

What is the principle of congestion control in TCP?

In TCP, the congestion window (CWND) is one of the factors that determines the number of bytes that can be sent out at any time. The congestion window is maintained by the sender and is a means of stopping a link between the sender and the receiver from becoming overloaded with too much traffic.

What are the different techniques of congestion control?

In general, we can divide congestion control mechanisms into two broad categories: open-loop congestion control (prevention) and closed-loop congestion control (removal) as shown in Figure 4.27. In open-loop congestion control, policies are applied to prevent congestion before it happens.

What are two types of congestion control?

Explanation: Open loop congestion control techniques are used to prevent congestion before it even happens by enforcing certain policies. Closed loop congestion control techniques are used to treat congestion after it has happened.

What are the three parts of congestion control?

TCP's general policy for handling congestion is based on three phases: slow start, congestion avoidance, and congestion detection. In the slow-start phase, the sender starts with a very slow rate of transmission, but increases the rate rapidly to reach a threshold.

What are the types of congestion?

There are two types of congestion: recurring and non-recurring.

Why is congestion control important?

In short, congestion control governs how the total network capacity is divided up among all those transmitting data. We need congestion control to prevent internet traffic from getting clogged and swamping the networks.

Which 2 layers are responsible for congestion control in networks?

Network and Transport layers handle congestion control.

What are the 6 types of congestion?

For purposes of economic analysis it is useful to distinguish at least six types of congested situations, which are: simple interaction, multiple interaction, bottleneck, triggerneck, network and control, and general density.

What is an example of congestion?

Congestion also occurs during periods of indecision. For example, the price may shoot up, but then start moving sideways. This sideways period is caused by traders reassessing the outlook of the asset and digesting what just happened.

What causes congestion?

Nasal congestion can be caused by anything that irritates or inflames the nasal tissues. Infections — such as colds, flu or sinusitis — and allergies are frequent causes of nasal congestion and runny nose. Sometimes a congested and runny nose can be caused by irritants such as tobacco smoke and car exhaust.

What are flow control techniques?

Flow control is design issue at Data Link Layer. It is a technique that generally observes the proper flow of data from sender to receiver. It is very essential because it is possible for sender to transmit data or information at very fast rate and hence receiver can receive this information and process it.

What two factors does congestion control involve?

The TCP congestion control mechanism has each side of the connection keep track of two additional variables: the congestion window and the threshold. The congestion window, denoted CongWin, imposes an additional constraint on how much traffic a host can send into a connection.

How congestion is controlled at transport layer?

The well-known and widely used close-loop control mechanism is TCP congestion control, which is implemented at transport layer. control adjusts the transmission rate dynamically by controlling the window size, which specifies the number of unacknowledged packets allowed by the source process.

What is difference between congestion control and flow control?

The key contrast between flow control and congestion control is that flow control is a system that controls and manages traffic between sender and receiver. In contrast, the congestion control mechanism regulates the traffic placed into the network by the transport layer.

What are the 3 elements of service quality?

If you're going to improve the service aspect of your firm, you'll need to focus on the three components of service: the people delivering the service, the quality of the service delivery, and the systems the business uses to deliver that service.

What are the 3 levels of service quality?

The study highlights that service quality factors in formal procurement contracts can be related to three interdependent management levels: the rhetorical level, the strategic level, and the operational level, in each of which the factors are described differently.